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Question:

A machine is currently set to a feed rate of 5.921 inches per minute (IPM). The machinist changes this setting to 6.088 IPM. By how much did the machinist increase the feed rate?

A 0.167 IPM
Explaination

The amount by which the feed rate increases is the difference between the second feed rate and the first feed rate. This is represented by 6.088 − 5.921 = 0.167.